Sash window



s. MAURER 2,007,499

SASH WINDOW July 9, 1935.

Original Filed May 5, 1934 /NvENToR SAM MA URER 'Wwf Patented July 9, 1935v Y. sAysH VWINDOW Sam Maurer, Burnaby, British Columbia, Canada, v

assignor of thirt f Wuschke, South y-ive per cent to `Emil Burnaby, British, Columbia,

Canada, and thirty-two and one-half per cent l to Paul A. Seidel, Vancouvenritish Columbia, l.;

Canada. i

Application May 5, `1934, serial No. 724,173

Renewed May 23, 1935 y 9 Claims. (Cl. 20-49) Myinvention relates to improvements in sash windows which rare particularly adapted for windows ofthe double hung sashtype. The objects of theinventionare to provide means for hanging a window sash whereby it may be raised andlowered in the usual way and swung about alhorizon- 'tal axis; so aste afford ventilation or to facilitate cleaning of the outside vof the 'sash pane,l and to provide also ameans `for preventing draught between thesash stiles and the window frame. U

j The invention consists of a pair of sheet metal 4strips folded` longitudinally and vadapted to be secured tothe stiles of a'window sash and capable `of being compressed transversely to allow the sash to swing about a horizontal axis, las will be more fully rdescribed in the following speciiication'andshown in the accompanying drawing, in

Fig. 1 is an elevational view of one strip slidably mounted in the pulley stile of a window frame.

Fig. 2 is a vertical sectional View. i Fig. 3 is a sectional view taken on the line 3-3 of Figure 2.

Fig. 4 is a transverse sectional view of a strip reinforced as for use with heavy sashes.

In the drawing like characters of reference indicate corresponding parts in each figure.

The numeral I indicates a pulley stile of a double 30" hung sash window which is provided with stops 2,

tted in the usual way, a sill 3 and a stool 4.

The numeral 5` indicatesa sash consisting of stiles 6, bottom rail 'I and meeting or top rail 8. The width of the sash 5 is slightly less than the opening between stops 2 of opposite pulley stiles I.

Each sash is provided with a concave groove 9, `see Figure 3, the purpose of which will hereinafter appear. Pivotally mounted within each groove 9 is a strip IIJ, which is preferably made of sheet spring brass and is transversely bent to a substantially oval form with `folds II and I2 connected together by a bead I3. The free end of the fold I2 is inturned to provide avfurther bead I4 which with the bead I3 serves to engage the stops 2 of the pulley stile and keep the strip in place therein.

Housed within the vstrip Il) is a semi-elliptical spring I5 which "bears, adjacent its ends as at I6, against the fold I2 and is held in place within the strip by a screw I1 which passes through an orifice in the fold `I2 and into the stile 6 of the sash. It is preferable that the central portion of the spring I5 shall bear against the fold I I of the strip as shown in Figures 2 and 3, but this fold l2 or the strip latch or projection '23 at its upper end, which is i adapted normally to pass throughthe gap 20 and engage a corresponding slot 24 formed inthe upper end of the sash stile y6 to-prevent' the sash from being inadvertently swung about the pivot screws II. This spring is adapted, on the pressing back of. its latch 23,.to be swung about the rivet 2 I and to assume an inclined position as shown in Figure 1, with the latch engaged on the inner side ofthe fold I2,'so as to hold it out of `engagement with the sash and to-permit the sash to be swung. In the modication shown in Figure 4, the

` is reinforced with a transversely curved strip 25 which conforms to the normal extended curvature of the fold I2. a

In use the sash can be raised and lowered in l exactly the saine manner as inthe conventional type of double hung sash window.

When it is desired to swing the sash either for ventilationror to reverse it to clean its outer glass surface, the latch 23 is pressed towards the pulley stile 2 and is then thrust over to one side of the gap 20, thus locking it against return movement, thenY the top or bottom rails 'I or 8 respectively are pulled inwardly, which action, due to the curvature of the grooves 9 in the sash stiles causes `the fold I2 of the strip I0 and the spring I5 to be compressed so that the sash may turn about the axis of the screw I'I. When the sash 'is tilted out of the vertical, the pressure exerted upon it by the inherent spring of the strip and of the spring I5 prevents the strips from sliding, except under undue force, so that the horizontal yaxis of the sash will remain undisturbed.

Where heavy sashes. are to be slidably and pivotally hung, .the reinforcing strip 25 is desirable, since substantially the same strength of spring is required in all strips irrespective of weight of each, but then in heavy sashes, when swung out of the vertical there is a tendency for the upper and lower ends of the strip to project beyond the centre portion, hence by reinforcing said` strip with a further concave strip 25, the vertical face of both is maintained in a straight vertical line.

What I claim as my invention is:

1. Av window sash mounting comprising a strip 'of sheet material folded longitudinally' into two folds separated at their free ends, one of said folds having a longitudinal convex curve adapted to engage a complementary concave curve in a sash stile, and being adapted for pivotal mounting upon fsaid jstile, the other of said folds being adapted to slidably engage the pulley stile.

2. A window sash mounting comprising a strip of sheet material folded longitudinally into two folds, the intersection of the folds forming a bearing bead and the free end of one of the folds being bent to form a complementary bead, said fold having a longitudinal convex curve adapted to frictionally engage the stile of a sash and being adapted for pivotal mounting upon said stile, the other of said folds being adapted to slidably engage the pulleystile.

3. A window sash mounting comprising a strip of sheet material folded longitudinally into two folds, the borders of the'folded strip being provided with beads adapted to slidably engage the stops -of a pulley stile, means formed integrally #with 'one of the-folds'for frictionally engaging the stile of a sash, said strip being adapted for "pivotalmounting upon said sash stile, and the other of said folds lbeing adapted to slidably en- 1 gage the pulley stile.

f4. Afwindow mounting comprising a strip of *sheet -material folded longitudinally into two f-folds,l one vof said' folds being transversely curved :to engage a complementary groove' in a sash stile,

r and spring means other than the inherent spring of the sheet materialfor urging the folds apart.

5. -A windowmountingcomprising a strip of sheet material folded longitudinally into two folds, one of said folds being transversely curved :to engage a-complementary groove in aV sash Vsi/tlaand.spring means other than the inherent spring of the sheet material for urging the ends of the curved fold away from the other fold.

6. A window mounting comprising a strip of sheet material folded longitudinally into two folds, one of said folds being transversely curved to engage a complementary groove in a sash stile, and a semi-elliptical spring extending longitudinally between said folds for urging them apart.

7. A Window mounting comprising a strip of sheet material folded longitudinally into two folds, one of said folds being transversely curved to engage a complementary groove in a sash stile, and a semi-elliptical spring extending longitudinally between said folds for urging them apart, said spring being provided at one end with means for attachment to `a sash cord.

8. A window sash mounting comprising a strip of sheet material folded longitudinally into two spaced folds, one of said folds being provided with a transverse curve convex exteriorly of the strip, the upper end of said strip being provided'with a gap, and a spring latch secured to the inside of the fold and to project outwardly through said gap.

of sheet material folded longitudinally into two spaced folds, one of said folds being provided-with a transverse curve convex exteriorly of the-strip,

the upper end of said strip bengprovidedfwith gap and moved transversely to engage a border 35 of the gap to lock it out of action.

SAM

9. A window sash mounting comprising. a strip l 

